IBM System/370 145 Service-Handbuch

System/370

Model

145

Reference

Summary

S229-2239-1

IBM

Corporation,

Field

Support

Documentation,

Dept

927,

Rochester, Minnesota 55901

PREFACE

This publication

primarily intended for

customer engineers servicing System/370

Model 145.

Second Edition (September 1972)

This

a major revision of, and makes

8229-2239-0 obsolete.

Address any comments concerning the contents

this publication

to:

IBM,

Field Support

Documentation, Dept 927, Rochester,

Minnesota 55901

Section 1 - Control Words

Branch and Module

CONTENTS

Switch Word

"O"

. . .

Branch Word . . . . . 1.2

Function Charts . 1.3

Function Charts . 1.4

Function Charts . 1.5

Branch and

Link

Return Word . 1.6

Word Move Word Version"O" .

Word Move Word Version

"1"

. . . 1.8

Storage Word, Non K-Addressable . 1.9

Storage Word, K-Addressable . . . 1.10

Arithmetic

Word 10 Byte Version 1.11

Arithmetic

Word, Fullword Version 1.12

Arithmetic

Word,

Direct

ByteVersion . . . . . . . . . . 1.13

Arithmetic

Word, 10/11 Indirect

Byte Version . . . 1.14

ALU

Entry

Gating 1.15

Stat Set Symbols . 1.15

BranchSymbols . 1.15

Arithmetic

Word Chart Selection 1.16

Address Formation Chart 1.16

Control Word Chart Selection 1.16

Section 2 -

CPU

3145

CPU

Data Flow .

2.1

I-Cycles Data Flow . 2.2

I-Cycles . . . . . . . . 2.3

PSW

Locations . . . . 2.3

Expanded Local Storage . 2.3

I-Cycles . . . . . . . . . . 2.3

I-Cycles Control Line Generation . 2.4

Control Word . . . . . . . 2.4

Control Register Decode . . . . . 2.4

iii

ECCL

Board Layout

............

2.5

Data Bit Location Chart

..........

2.5

Common Test Points

............

2.6

3145

CPU

BSM

Addressing

.........

2.6

Main

Storage Frame -128K

........

2.6

3345

Main

Storage Frame -256K

.....

2.6

CPU

SAR Bits 15, 16, and 17

.......

2.6

Memory Troubleshooting Procedure

...

2.7

Example Chart for Array

Card Outputs

Phase

Memory

....

2.8

Cycle Length

................

2.9

Local Storage Timing Chart . . . . . . . 2.10

External Destination Timing Chart . . . 2.11

Gate Layouts . . . . . . . . . . . . . . . 2.13

CPU

Clock Information

.........

2.14

Trap Locations and Routines . . . . . . 2.15

Feature Code Listing . . . . . . . . . . . 2.17

Feature Code Listing . . . . . . . . . . . 2.18

Feature Code Listing . . . . . . . . . . . 2.19

Feature Code Listing . . . . . . . . . 2.20

370

Coreload Feature Part Numbers

2.21

370 Coreload Feature Part Numbers . . 2.22

ALO

Page

Index

.............

2.23

ALO

Page

Index

.............

2.24

ALO

Page

Index

.............

2.25

ALO

Page

Index

.............

2.26

ALO

Page

Index . . . . . . . . . . . . . 2.27

ALO

Page

Index . . . . . . . . . . . . . 2.28

ALO

Page

Index

.............

2.29

ALO

Page

Index . . . . . . . . . . . . . 2.30

Console Indicators -Logic Reference . . 2.31

Upper Roller -Logic Reference 2.32

Lower Roller -Logic Reference . . . . . 2.33

Section 3 - Console File (23FD)

Console File Control and Data Flow

...

3.1

Compare Mode . . . . 3.2

Control Commands . . 3.2

Operation Commands . 3.2

Console File Disk Address (CFDA)

Byte 3.2

Console File Control Functions 3.3

Error Checks . . 3.4

Byte Format . . . . . . . 3.5

Section 4 - Channels

MPX Channel Data Flow

4.1

UCW

Addressing Table . 4.2

Byte MPX

UCW

. . . . . 4.2

Selector Channel Data Flow 4.3

Standard Device

Addresses

. 4.4

Word Buffer . . . . . . . 4.4

Block Multiplex Feature . . 4.5

UCW

Pool . . . . . . . . . . 4.6

UCW

Assignment Registers . 4.6

UCW

Format . . . . . . . . . 4.6

Section 5 - Integrated File Adapter

(IFA)

IFA

Data Flow . . . . . .

5.1

General Status Indications 5.2

In-Line Tests . . . 5.2

IFA

Information.

. . . . . 5.3

Sense

Information . . 5.3

Control Words Forced

for

Cycles . . . . . . . . . . 5.4

IFA

Local Storage Assignments 5.5

IFA

Area . . . . . . . . . . . . 5.5

Drive Interface . . . . . . . 5.7

Latches Logic References . . 5.8

Section 6 - Console Printers

3210 Control

and

Data Flow

6.1

3215 Control and Data Flow 6.2

Alter/Display Functions 6.3

Console Printer Valid Addresses

.....

6.4

Section 7 - Features Addr Adj Clock

Comparitor,

CPU

Timer

PSW

Format . . . . . . . . . . . . 7.1

Address Translate Process Overview . 7.2

Address Translate Process . . . . . . 7.3

Address Translate Process . . . . . . 7.4

Clock Comparitor CPU Timer (CPT) . 7.6

Section 8 - Software and Logouts

System/370

Instructions Set . . . . . 8.1

Information Retrieval Under DOS/360 . 8.2

Control Registers . . . . . . . .

8.4

CPU

Independent Logout .

8.5

Machine Check Interrupt Code .

8.6

Model

145

Machine Dependent

Log

. 8.7

1/0 Communications Area . . . . . .

8.9

Extended Logout . . . . . . .

8.10

MPX

Channel Machine Dependent

Log

8.10

Selector Channel/Block Multiplex

Channel Dependent

Log

8.10

ECC

Recording 8.11

ECC

Recording 8.12

Section 9 - Power

Power Supplies . 9.2

Power Reference Manual . . . . . . .

9.3

Relay Function and Location Chart .

9.4

Initial Regulator Adjustment

for Power-Up Procedure .

9.5

Power-On Sequence .

9.6

Start

Line Tips . . . . .

9.10

System Checklist . . . .

9.10

Voltage Levels -Scoping Information

9.13

Miscellaneous Part Numbers . . . . . 9. 16

Section

10-

Micro Diagnostics

Basic Diagnostic

FLT.

......

10.1

Basic Diagnostic Information

Diagnostic Functions

.....

Local Storage

Map

(Diagnostic) .

Diagnostic Test Listing

Section

Maps

External Assignment Chart

External Address Line Decoding

External Gating

A-Registers

FAT·

Diagnostic

Usage

Expanded Local Storage

Map

Local Storage . . . . . . . . .

Control Registers Bit Definitions

Direct Addressable Control Storage

Map

...............

vii

10.2

10.3

10.4

10.5

11.1

11.2

.11.27

.11.30

.11.31

.11.32

.11.33

.11.36

INDEX

Section 1 - Control Words

.................

Section 2 -

CPU

.........................

Section 3 - Console File

..................

Section 4 - Channels . . .

.................

Section 5 - IFA

........................

Section 6 - Console Printer

................

Section 7 - Features, Address Adjust, Clocks

...

Section 8 - Software and Logout

...........

Section 9 - Power and

MST

General

........

Section

-Diagnostics

.................

Section

MAPs

......................

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